H fcc Sim_LAMMPS_ReaxFF_ChenowethVanDuinGoddard_2008_CHO__SM_584143153761_001 2.546392105519772 Optimization terminated successfully. Current function value: -1.127963 Iterations: 72 Function evaluations: 183 C11 = 949.255271 +/- 0.007336 GPa C12 = 1032.910983 +/- 0.005187 GPa C44 = -100.173396 +/- 0.001834 GPa B = 1005.025745 +/- 0.004235 GPa